Topic 3.8 Notes – Political and Social Cleavages
What Political and Social Cleavages Are
A cleavage is an enduring internal division in society that becomes politically relevant. It matters when it shapes voting, parties, patronage, protest, policy, legitimacy, or conflict.
Main types:
- Class divides people by income, wealth, occupation, education, and opportunity.
- Ethnicity divides by ancestry, language, culture, race, or indigenous-settler identity.
- Religion can divide different religions or groups within one religion.
- Territory divides center and periphery, regions, nations, or places with uneven development.
What makes a cleavage political is inequality. If a group has less power, fewer services, weaker language rights, less land, or less recognition, the division starts affecting how people relate to the state.
Reinforcing and cross-cutting
- Reinforcing cleavages stack on top of each other. The same groups are divided by ethnicity, religion, region, and class all at once. Conflict is more likely.
- Cross-cutting cleavages split people one way on one issue and another way on something else. That creates shared interests and can reduce polarization.
In democracies, cleavages often show up in elections and party systems. In authoritarian states, they often come out through patronage, protest, underground groups, religious institutions, exile groups, or separatism.
The Six Course Countries and Their Main Cleavages
China is a good place to start because some of its cleavages are easy to picture geographically, especially in Xinjiang and Tibet.
- China
Han majority vs 55 recognized minorities. The biggest examples are Uighurs in Xinjiang and Tibetans in Tibet. These are ethnic, religious, and territorial cleavages at the same time. China also has strong coastal vs inland and urban vs rural development gaps. - Iran
Shi’a Muslim majority vs Sunni Muslims and recognized minorities such as Christians, Jews, and Zoroastrians. The Baha’i face persecution and lack equal recognition. There is also a Persian majority vs minorities including Azerbaijanis and Kurds. - Mexico
Indigenous Amerindian groups vs whites and mestizos, plus a major north-south regional divide. In the south, ethnicity, class, and territory often reinforce each other. - Nigeria
More than 250 ethnic groups. You need Hausa-Fulani, Yoruba, and Igbo. The north is mostly Muslim, the south more Christian and animist. This is the clearest reinforcing-cleavage case in the course. - Russia
Ethnic Russians, often tied to Russian Orthodoxy, vs non-Russian minorities. The key example is Chechens in the Caucasus, who are predominantly Muslim. - United Kingdom
Territorial and national cleavages among English, Scottish, Welsh, and Irish. In Northern Ireland, Protestants/unionists and Catholics/nationalists divide over identity and the state. There are also white vs non-European minority tensions tied to colonial history.
Autonomy, Separatism, and Where They Show Up
Autonomy means more self-government within the state. Separatism or secession means independence from the state.
- Separatist movements
- China: Xinjiang and Tibet
- Iran: Kurdish separatist or armed autonomy movements
- Nigeria: Biafra and the Nigerian Civil War, 1967-1970
- Russia: Chechnya, including the First and Second Chechen Wars
- UK: Scottish independence movement and the 2014 referendum
- Autonomy without full independence
- Mexico: EZLN Zapatistas in Chiapas, focused on indigenous rights and self-government
- UK: Welsh devolution, plus wider devolution in Scotland, Wales, and Northern Ireland
How Governments Respond and Why It Matters
Governments usually move through the same chain. A cleavage becomes political, the state responds, and that response affects legitimacy and stability.
Main responses
- Accommodation includes minority recognition, reserved representation, devolution, federalism, power-sharing, and autonomous regions.
- Coercion includes surveillance, detention, forced assimilation, repression, and military force.
- Governments also use cleavages politically by appealing to majority nationalism, religion, or unity.
Country examples
| Country | Main response |
|---|---|
| China | Autonomous regions in name, but heavy surveillance, reeducation camps, assimilation, and repression in Xinjiang and Tibet |
| Iran | Limited Majles representation for recognized religions, strong Shi’a state identity, repression of threatening groups |
| Mexico | Pluricultural recognition, negotiation, uneven indigenous rights, periodic coercion, EZLN bargaining |
| Nigeria | Federalism, federal character, zoning, some Sharia in northern states, military response to Boko Haram |
| Russia | Formal federalism, real centralization under Putin, co-optation and repression in Chechnya under Ramzan Kadyrov |
| UK | Devolution, Good Friday Agreement, power-sharing in Northern Ireland |
Accommodation can increase buy-in and reduce violence. Repression can create short-term control but weaken long-term legitimacy. Terrorism and extremism can grow out of long-standing cleavages, like Boko Haram in Nigeria or separatist violence in several states. China also uses claims about extremism to justify repression.
Big Comparisons to Lock In
Nigeria vs Mexico
Both have ethnic and regional cleavages. Ethnicity matters more in Nigeria because major groups are larger, more territorially concentrated, and more tied to religion and colonial regional divisions. In Mexico, mestizo national identity and more localized indigenous identities reduced nationwide ethnic-bloc politics.
Regime-type pattern
Democracies like the UK rely more on elections, devolution, and power-sharing. Authoritarian states like China, Iran, and Russia give fewer open channels, so cleavages show up more through informal networks, protest, separatism, and repression.
Best exam chain
- Identify the groups.
- Name the cleavage type.
- Decide if it is reinforcing or cross-cutting.
- Explain how it becomes political.
- Explain the state response.
- Link that response to legitimacy, citizen relationships, and stability.
Key Takeaways
Social Cleavage
An enduring internal division, based on identity or social position, that structures relationships among groups in a society
Class Cleavage
A division based on socioeconomic position, such as income, occupation, property, education, or economic opportunity
Ethnic Cleavage
A division among groups distinguished by shared ancestry, language, culture, or historical identity
Religious Cleavage
A division between religions or between denominations within the same religion
Territorial Cleavage
A division among regions, nations, or center and periphery involving identity, unequal development, authority, or resources
Reinforcing Cleavages / Coinciding Cleavages
Cleavages that place the same groups on opposing sides of several divisions, increasing polarization and the risk of conflict
Cross-Cutting Cleavages
Cleavages that divide people differently across issues, creating shared identities that can moderate conflict
Autonomy-Seeking Movement
A movement demanding greater regional self-government while remaining within the existing state
Separatist Movement / Secessionist Movement
A movement seeking to withdraw territory from a state to form an independent state or join another state
Political Accommodation
A state response that recognizes, represents, or grants self-government to divided groups within the political system
Political Repression
The use of surveillance, detention, legal restrictions, police, or military force to suppress group organization or demands
Power-Sharing
An arrangement that guarantees major social or political groups participation in governmental authority
Devolution
The transfer of governing powers from a central government to regional institutions while the region remains within the state
Han–Minority Cleavage in China
A division between the Han majority and minorities such as the Muslim Uighurs in Xinjiang and Buddhist Tibetans in the southwest
Shi'a–Sunni Cleavage in Iran
A division between Iran's politically dominant Shi'a majority and Sunni minorities concentrated partly in peripheral ethnic regions
Iran's Recognized Religious Minorities
Christians, Jews, and Zoroastrians receive limited constitutional recognition and Majles representation but not equal political standing
Persian–Minority Cleavage in Iran
A division between the Persian majority and minorities including Azerbaijanis, Kurds, Arabs, and Baluchis
Mestizo
A person of mixed European and indigenous ancestry; mestizo identity became central to Mexico's postrevolutionary national identity
Mexico's North–South Cleavage
A division between the more industrialized, urban, U.S.-integrated north and the poorer, more rural and indigenous south
Zapatista Army of National Liberation / EZLN
A movement whose 1994 Chiapas uprising demanded indigenous rights and local autonomy rather than an independent state
Biafra and the Nigerian Civil War
The attempted secession of the predominantly Igbo southeast as Biafra caused the Nigerian Civil War of 1967–1970
Federal-Character Principles
Nigerian rules intended to distribute public offices among states, regions, and ethnic communities
Zoning
An informal Nigerian party practice of rotating important political offices among regions
Boko Haram
A violent Islamist organization centered in northeastern Nigeria and fueled partly by inequality, weak governance, and regional grievances
Russian–Chechen Cleavage
A division between the ethnic Russian majority, culturally associated with Russian Orthodoxy, and the predominantly Muslim Chechens of the North Caucasus
Chechen Wars
Wars beginning in 1994 and 1999 in which Russia used extensive force to defeat Chechen separatism and restore federal control
United Kingdom's National–Territorial Cleavage
The politically relevant division among England, Scotland, Wales, and Northern Ireland and their relationships with the British state
Scottish National Party / SNP
A regional party that uses electoral and parliamentary politics to pursue Scottish nationalism and independence
Unionists vs. Nationalists in Northern Ireland
Unionists, historically mostly Protestant, favor remaining British; nationalists, historically mostly Catholic, favor Irish identity or unity
The Troubles
A period of Northern Irish violence involving republican and loyalist paramilitaries and state security forces
Good Friday Agreement
The 1998 agreement that created devolved power-sharing in Northern Ireland and required majority consent for any change in its status
China's Coastal–Inland Cleavage
A territorial and economic division between the more developed eastern coastal core and less developed inland and western areas
China's Urban–Rural Cleavage
A class and territorial division in which urban residents generally have greater access to employment, education, and public services than rural residents
Indigenous–White and Mestizo Cleavage in Mexico
An ethnic division between culturally distinct Indigenous communities and Mexico's white and mestizo populations
Nigeria's Ethnic Cleavage
A division among more than 250 ethnic groups, especially the Hausa-Fulani in the north, Yoruba in the southwest, and Igbo in the southeast
Nigeria's Religious and Regional Cleavage
A division between the predominantly Muslim north and the south, where Christians and practitioners of Indigenous religions are concentrated
United Kingdom's Racial and Ethnic Cleavage
Tensions between white citizens and non-European minorities whose presence is connected partly to colonial history and postwar immigration
Notes
Social Cleavage
An enduring internal division, based on identity or social position, that structures relationships among groups in a society
Class Cleavage
A division based on socioeconomic position, such as income, occupation, property, education, or economic opportunity
Ethnic Cleavage
A division among groups distinguished by shared ancestry, language, culture, or historical identity
Religious Cleavage
A division between religions or between denominations within the same religion
Territorial Cleavage
A division among regions, nations, or center and periphery involving identity, unequal development, authority, or resources
Reinforcing Cleavages / Coinciding Cleavages
Cleavages that place the same groups on opposing sides of several divisions, increasing polarization and the risk of conflict
Cross-Cutting Cleavages
Cleavages that divide people differently across issues, creating shared identities that can moderate conflict
Autonomy-Seeking Movement
A movement demanding greater regional self-government while remaining within the existing state
Separatist Movement / Secessionist Movement
A movement seeking to withdraw territory from a state to form an independent state or join another state
Political Accommodation
A state response that recognizes, represents, or grants self-government to divided groups within the political system
Political Repression
The use of surveillance, detention, legal restrictions, police, or military force to suppress group organization or demands
Power-Sharing
An arrangement that guarantees major social or political groups participation in governmental authority
Devolution
The transfer of governing powers from a central government to regional institutions while the region remains within the state
Han–Minority Cleavage in China
A division between the Han majority and minorities such as the Muslim Uighurs in Xinjiang and Buddhist Tibetans in the southwest
Shi'a–Sunni Cleavage in Iran
A division between Iran's politically dominant Shi'a majority and Sunni minorities concentrated partly in peripheral ethnic regions
Iran's Recognized Religious Minorities
Christians, Jews, and Zoroastrians receive limited constitutional recognition and Majles representation but not equal political standing
Persian–Minority Cleavage in Iran
A division between the Persian majority and minorities including Azerbaijanis, Kurds, Arabs, and Baluchis
Mestizo
A person of mixed European and indigenous ancestry; mestizo identity became central to Mexico's postrevolutionary national identity
Mexico's North–South Cleavage
A division between the more industrialized, urban, U.S.-integrated north and the poorer, more rural and indigenous south
Zapatista Army of National Liberation / EZLN
A movement whose 1994 Chiapas uprising demanded indigenous rights and local autonomy rather than an independent state
Biafra and the Nigerian Civil War
The attempted secession of the predominantly Igbo southeast as Biafra caused the Nigerian Civil War of 1967–1970
Federal-Character Principles
Nigerian rules intended to distribute public offices among states, regions, and ethnic communities
Zoning
An informal Nigerian party practice of rotating important political offices among regions
Boko Haram
A violent Islamist organization centered in northeastern Nigeria and fueled partly by inequality, weak governance, and regional grievances
Russian–Chechen Cleavage
A division between the ethnic Russian majority, culturally associated with Russian Orthodoxy, and the predominantly Muslim Chechens of the North Caucasus
Chechen Wars
Wars beginning in 1994 and 1999 in which Russia used extensive force to defeat Chechen separatism and restore federal control
United Kingdom's National–Territorial Cleavage
The politically relevant division among England, Scotland, Wales, and Northern Ireland and their relationships with the British state
Scottish National Party / SNP
A regional party that uses electoral and parliamentary politics to pursue Scottish nationalism and independence
Unionists vs. Nationalists in Northern Ireland
Unionists, historically mostly Protestant, favor remaining British; nationalists, historically mostly Catholic, favor Irish identity or unity
The Troubles
A period of Northern Irish violence involving republican and loyalist paramilitaries and state security forces
Good Friday Agreement
The 1998 agreement that created devolved power-sharing in Northern Ireland and required majority consent for any change in its status
China's Coastal–Inland Cleavage
A territorial and economic division between the more developed eastern coastal core and less developed inland and western areas
China's Urban–Rural Cleavage
A class and territorial division in which urban residents generally have greater access to employment, education, and public services than rural residents
Indigenous–White and Mestizo Cleavage in Mexico
An ethnic division between culturally distinct Indigenous communities and Mexico's white and mestizo populations
Nigeria's Ethnic Cleavage
A division among more than 250 ethnic groups, especially the Hausa-Fulani in the north, Yoruba in the southwest, and Igbo in the southeast
Nigeria's Religious and Regional Cleavage
A division between the predominantly Muslim north and the south, where Christians and practitioners of Indigenous religions are concentrated
United Kingdom's Racial and Ethnic Cleavage
Tensions between white citizens and non-European minorities whose presence is connected partly to colonial history and postwar immigration